era.mi/src/era/mi/logic/components/gates/MultiInputGate.java

   1 package era.mi.logic.components.gates;\r
   2 \r
   3 import java.util.List;\r
   4 \r
   5 import era.mi.logic.components.BasicComponent;\r
   6 import era.mi.logic.types.BitVector.BitVectorMutator;\r
   7 import era.mi.logic.types.MutationOperation;\r
   8 import era.mi.logic.wires.Wire.WireEnd;\r
   9 \r
  10 public abstract class MultiInputGate extends BasicComponent\r
  11 {\r
  12         protected WireEnd[] in;\r
  13         protected WireEnd out;\r
  14         protected final int length;\r
  15         protected MutationOperation op;\r
  16 \r
  17         protected MultiInputGate(int processTime, MutationOperation op, WireEnd out, WireEnd... in)\r
  18         {\r
  19                 super(processTime);\r
  20                 this.op = op;\r
  21                 length = out.length();\r
  22                 this.in = in.clone();\r
  23                 if (in.length < 1)\r
  24                         throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));\r
  25                 for (WireEnd w : in)\r
  26                 {\r
  27                         if (w.length() != length)\r
  28                                 throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");\r
  29                         w.addObserver(this);\r
  30                 }\r
  31                 this.out = out;\r
  32         }\r
  33 \r
  34         @Override\r
  35         public List<WireEnd> getAllInputs()\r
  36         {\r
  37                 return List.of(in);\r
  38         }\r
  39 \r
  40         @Override\r
  41         public List<WireEnd> getAllOutputs()\r
  42         {\r
  43                 return List.of(out);\r
  44         }\r
  45 \r
  46         @Override\r
  47         protected void compute()\r
  48         {\r
  49                 BitVectorMutator mutator = BitVectorMutator.empty();\r
  50                 for (WireEnd w : in)\r
  51                         op.apply(mutator, w.getValues());\r
  52                 out.feedSignals(mutator.get());\r
  53         }\r
  54 }\r